[PATCH] powerpc: provide __bswapdi2

Segher Boessenkool segher at kernel.crashing.org
Tue May 14 02:47:47 EST 2013


>> I did a little digging, and it looks like gcc-4.4 will emit  
>> __bswapdi2
>> calls.  Support in rs6000.md appeared 2009-06-25.
>
> That's where it was seen. I don't have anything that ancient any  
> more so
> it didn't show up in my testing, but Al saw it on a Debian system.

It should never happen on 32-bit -- it is broken into two bswapsi's --
although, old compiler, who knows.  Lack of testing makes some people
nervous though ;-)


Segher



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